11287214 has 4 divisors (see below), whose sum is σ = 16930824. Its totient is φ = 5643606.

The previous prime is 11287207. The next prime is 11287229. The reversal of 11287214 is 41278211.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821802 + ... + 2821805.

It is an arithmetic number, because the mean of its divisors is an integer number (4232706).

Almost surely, 2^11287214 is an apocalyptic number.

11287214 is a deficient number, since it is larger than the sum of its proper divisors (5643610).

11287214 is an equidigital number, since it uses as much as digits as its factorization.

11287214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5643609.

The product of its digits is 896, while the sum is 26.

The square root of 11287214 is about 3359.6449217142. The cubic root of 11287214 is about 224.3170335435.

The spelling of 11287214 in words is "eleven million, two hundred eighty-seven thousand, two hundred fourteen".